Publication detail

An Investigation of Lubrication Mechanisms within Hard-on-soft Hip Implants: A Pilot Study

NEČAS, D. VRBKA, M. GALLO, J. GALANDÁKOVÁ, A. KŘUPKA, I. HARTL, M.

Czech title

Studium mechanismů mazání v kyčelních náhradách typu hard-on-soft: Pilotní studie

English title

An Investigation of Lubrication Mechanisms within Hard-on-soft Hip Implants: A Pilot Study

Type

conference paper

Language

en

Original abstract

The present study introduces the use of optical fluorescent method for the investigation of lubrication within hard-on-soft hip implants. Pendulum hip joint simulator was employed while several model fluids were applied. The contact of metal femoral head and polymethyl methacrylate acetabular cup was observed through optical imaging system. Dynamic swinging experiments were performed while it was found that the formation of lubricating film is strongly dependent on the composition of synovial fluid. Contrary to previous observations, it seems that the effect of hyaluronic acid is rather negative, indicating the importance of understanding the interaction of molecules.

Czech abstract

Tato studie představuje možnost užití optické metody na principu fluorescenční mikroskopie při studiu mazání kyčelních náhrad typu hard-on-soft. Byl využit kyvadlový simulátor kyčelního kloubu v kombinaci s různými modelovými mazacími kapalinami. Prostřednictvím optického systému byl pozorován kontakt kovové femorální hlavice a acetabulární jamky z polymethylmethakrylátu. Byly provedeny dynamické kývavé testy, přičemž se ukázalo, že formování mazacího filmu je silně závislé na složení synoviální kapaliny. Oproti předchozím pozorováním se zdá, že vliv kyseliny hyaluronové je spíše negativní, což poukazuje na důležitost porozumění interakce jednolitých molekul.

English abstract

The present study introduces the use of optical fluorescent method for the investigation of lubrication within hard-on-soft hip implants. Pendulum hip joint simulator was employed while several model fluids were applied. The contact of metal femoral head and polymethyl methacrylate acetabular cup was observed through optical imaging system. Dynamic swinging experiments were performed while it was found that the formation of lubricating film is strongly dependent on the composition of synovial fluid. Contrary to previous observations, it seems that the effect of hyaluronic acid is rather negative, indicating the importance of understanding the interaction of molecules.

Keywords in Czech

Kyčelní implantát; mazání; synoviální kapalina

Keywords in English

Hip replacement; lubrication; synovial fluid

Released

17.09.2018

Publisher

Malaysian Tribology Society

Location

Malajsie

ISBN

978-967-13625-2-5

Book

Proceedings of Asia International Conference on Tribology 2018 (ASIATRIB 2018)

Pages from–to

149–150

Pages count

2

BIBTEX


@inproceedings{BUT170138,
  author="David {Nečas} and Martin {Vrbka} and Ivan {Křupka} and Martin {Hartl},
  title="An Investigation of Lubrication Mechanisms within Hard-on-soft Hip Implants: A Pilot Study",
  booktitle="Proceedings of Asia International Conference on Tribology 2018 (ASIATRIB 2018)",
  year="2018",
  month="September",
  pages="149--150",
  publisher="Malaysian Tribology Society",
  address="Malajsie",
  isbn="978-967-13625-2-5"
}